Fourstroke 01 ONE

BMC Fourstroke explained



Fourstroke 01 TWO

Fourstroke 01 TWO


  • SRAM GX Eagle Drivetrain
  • Fox Float 32 SC Performance Elite Fork, Fox Float DPS Performance Elite Shock
  • DT Swiss XR 1501 Spline 25 Wheelset
Fourstroke 01 THREE

Fourstroke 01 THREE


  • SRAM X1 Eagle Drivetrain
  • Fox Float 32 SC Performance Fork, Fox Float DPS Performance Elite Shock
  • Shimano Deore hubs / Alex MD 25 rims
Fourstroke 01 FRS

Fourstroke 01 FRS


  • Race Application Dropper Seatpost
  • BMC MSM 01 Stem
  • Fox Float DPS Factory Shock

The Story

The uncompromising cross-country racer, Titouan Carod, stops at nothing in pursuit of performance.

'Known as one of the best descenders on the MTB World Cup circuit, and a core member of the BMC MTB Racing Team, it was no wonder that he was excited when we introduced him to the latest version of the world’s most accomplished XCO bike. “For a long time cross-country mountain bikes felt a bit like a compromise. A bike could be great on the climbs but it just wouldn't perform as well on the descents," he shrugs, “not any longer though.” As a former engineering student, Titouan had en educated, insider view of the Fourstroke's most recent developments: "This bike takes it to the next level. There's a lot of technology in it, but the design language is so stylish that there's also some mystery."

Titouan raced the Fourstroke for the first time at the 2018 World MTB Championships in Lenzerheide, a track that many feel is a complete cross-country circuit – all of the climbs, descents, drops, roots and rocks that make it a genuine challenge. Lenzerheide is where the French National MTB Champion got his best elite result to date: "It’s as fast up as it is down, which is something that I really enjoy. Modern cross-country mountain biking is really technical, meaning that bikes and riders need to be both physically and technically at the top of their game. Lenzerheide was the ultimate test and I think we're there."

In Detail


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Race Application Dropper
Advanced Pivot System
Big Wheel Concept (BWC) Race
Lightweight Premium Carbon
Integrated fork stopper
Integrated protection
IP cable routing

Race Application Dropper

The first integrated XC dropper post provides a radical competitive edge by deliver the optimum riding position, uphill and down. It's RAD.

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Advanced Pivot System

APS dual-link suspension technology allows you to pedal efficiently, brake hard, and charge rough terrain without compromise.

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Big Wheel Concept (BWC) Race

A radical approach to XC geometry, tailored to a fast and progressive riding style.

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Lightweight Premium Carbon

The Fourstroke 01 features a full-carbon frame with a new, super-light carbon upper link. The premium carbon upper link that saves weight and provides a robust connection between the front and rear triangles.

Integrated fork stopper

Engineered for optimized cable routing and frame protection. The integrated fork stopper protects the frame from impacts and allows a straight downtube design for improved stiffness and weight. The cable cover allows for clean cable entry and creates an additional protection layer.

Integrated protection

Molded plastic covers on chainstay and lower link ensure durability and a clean look.

IP cable routing

End-to-end guided cable routing for hassle-free installation and reduced maintenance.

Technical Details

  • SKU

  • Frame

    Fourstroke 01 - Advanced Pivot System, Race Application Dropper, PF92 Bottom Bracket, 12 x 148mm Thru-axle, 100mm Travel
  • Tubing

    01 Premium Carbon (F&R)
  • Fork

    Fox Float 32 SC, Factory, FIT4, Kashima, Remote, 100mm
  • Rear Shock

    Fox Float DPS, Factory, Evol, Kashima, Remote
  • Gears

  • Chainwheel

    SRAM XX1 Eagle SL, 34T
  • Cassette

    SRAM X01 Eagle, 10-50T
  • Chain

    SRAM XX1 Eagle
  • Rear Derailleur

    SRAM XX1 Eagle AXS
  • Shifters

    SRAM XX1 Eagle AXS
  • Brakes

    SRAM Level Ultimate (160/160) *
  • Handlebar

    BMC MFB 01 Carbon, 750mm
  • Stem

    BMC MSM 01
  • Seatpost

    BMC RAD 80mm Drop
  • Saddle

    Fizik Antares R5
  • Hubs

    DT Swiss XRC 1200 Spline
  • Rims

    DT Swiss XRC 1200 Spline 25 **
  • Tires

    Vittoria Barzo G2,0 tubeless 2.25
  • Weight (Kg)

  • Frame Material


Size S M L XL
Rider Height CM <172 172-182 180-188 >188
Top Tube MM (tt) 582 607 630 654
Wheelbase MM (wb) 1129 1155 1180 1206
Seat Angle (sa) 75.6 75.6 75.6 75.6
Seatpost Drop MM 80 80 80 80
Stack MM 580 590 600 615
Trail MM (trail) 106.5 106.5 106.5 106.5
Rear Center MM (rc) 429 429 429 429
Reach MM (reach) 423 445 465 485
Head Tube MM (ht) 96 107 117 134
Head Angle (ha) 67.5 67.5 67.5 67.5
BB Drop MM (drop) 44 44 44 44
Stem Length MM 50 60 60 70
Saddle Height Range 655-745 700-790 740-830 770-860
Seat Tube MM (st) 420 440 480 510
Stem Angle -5 -5 -5 -5
Crank Length MM 170 175 175 175
Fork Rake MM (fr) 44 44 44 44
Front Center MM (fc) 700 726 750 777
Fork Length MM (fl) 506 506 506 506
Bar Width MM 720 720 720 720
Backsweep 9 9 9 9

In the press

What are they saying?

This bike only receives superlatives as it is impressive to ride.

The key to success? The well-educated risk-taking of Swiss engineers who have opened a new door to the cross-country mountain bike segment.

Vélo Tout Terrain

This bike only receives superlatives as it is impressive to ride.

The key to success? The well-educated risk-taking of Swiss engineers who have opened a new door to the cross-country mountain bike segment.

Vélo Tout Terrain
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